The 2015 Mercedes-Benz C-Classes in this analysis were driven mostly in the city (about 70 percent of the miles driven). The rest of the miles were on the highway at an average speed of 65 miles per hour (20 percent), in heavy traffic (5 percent), and in the suburbs (0 percent).

In addition, the average 2015 Mercedes-Benz C-Class in this analysis was driven on flat terrain with a medium foot and the AC on most or all of the time.

What Our Members Are Saying about the Real Gas Mileage of the 2015 Mercedes-Benz C-Class

2015 Mercedes-Benz C-Class Gas Mileage (MPG)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and
where a car was driven. So you can get an idea of the Mercedes-Benz C-Class's
real-world MPG based on how and where you drive a car.